Freight and passenger elevator



D. V. REEDY. FREIGHT AND PASSENGER ELEVATOR.

APPLIQATION FILED MAR. 14' 1922. 1,535,082.

Patented Nov. 7 11922;.

2 SHEETS-S'HEE] D. V. REEDY. FREIGHT AND PASSENGER ELEVATOR. APPLICATIONFILED MAR. I4. 1922.

1,%35,082. Patented Nov. 7, 1922.

2 SHEETSSHEET 2.

Patented Nov. 7, 1222.

A. w warmitt r s if if it fie. o

. DANIEL V. REEIDY, OFINDIANAIOLIS, INDIANA.

FREIGHT AND PASSENGER ELEVATOR.

Application filed March 14, 1922. Serial No. 543,591.

To all whom it may concern:

Be it known that I, DANIEL V. Bauer, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented new and useful Improvements in Freightand PassengerElevators, of which the following is a specification.

The object of this invention is to cheapeu the cost of construction,installation, and upkeep of passenger and freight elevators, and toincrease their power and capacity.

I accomplish the above, and other objects which will hereinafter appear,by the mechanism illustrated in the accompanying drawings, in which-Fig. 1, is a top plan view of an elevator embodying my improvements.Fig. 2, is a vertical section on the line 2-2 of Fig. 1,

and Fig. 3, is a portion of the driving-put.

ley with V-shape grooves.

Like characters of reference indicate like parts in the several views ofthe drawings.

The elevator hatchway is framed in the usual manner and has .tophorizontal beams 1, which support a platform 5 on which is a motor 6,having a shaft 7 on which is a cable-pulley 8 and a much smallercablepulley 9, hereshown as approximately onehalf of the diameter of thepulley 8, but this may be varied as required. Also, on the shaft 7 is abrake-drum 10 of usual construction. The drawing shows pulleys 8 and 9with V-grooves (see Fig. 3) receiving for cables which are thusquadrupled for greater strength and friction, but the number may be moreor less than four as desired and half round or other than V-shapedgrooves be formed in the pulleys to receive the cables.

A car 11 has vertically channeled guides 12, on opposite sides of thecar, which engage corresponding vertical T rails 13, sup ported bymembers 14 from the frame of the hatch. A pulley 15 is mounted on top ofthe car 11, and continuous cables 16 pass over the pulley 8, thence downand under the pulley 15, and up and over the pulley 9. The cables thenpass from pulley 9, over an idler 17, and from there down and under apulley 18. thence up and over a pulley 19. mounted in. a fixed positionnear the top of the hatchway, thence down and under a pul ley 20, andthence up to where the ends are fastened to the frame of the hatchway,opposite the pulley 19. The pulleys 18 and 20,

are mounted on the same shaft from which weights 21, sufficient to keepthe cables stretched at all times, are suspended.

' The other ends of the cables coming over the large pulley 8 pass overan idler 22, thence down and under a movable pulley 223, up and over afixed pulley 24:, down and under a second movable pulley 25, up and overa fixed pulley 26, down and under a third movable pulley 27, and then towhere the ends are fastened to the frame of the hatchway opposite thefixed pulleys 24 and 26.

The movable pulleys 23, 25, and 27, are mounted on the same shaft, andfrom this shaft a series of weights, sufficient to over balance theweight of the car 11, are suspended.

In the operation of my invention the power-is multiplied by thedifference in ratio of the diameters of the pulleys 8 and 9, andprovisiouis made for keeping the cables taut coming from both pulleys atall positions of travel of the car. The tackle may be from single tomultifold, depending upon the working conditions of the assembly.

While I have here shown the preferred form of my invention, it isobvious that variations may be made some of which have been mentioned,without departing from the spirit of my invention, and I therefore donot desire to be held unduly to the construction shown, or any more thanis re' quired by the appended claims, and what I claim is- 1. Inelevator construction, a car, a pair of pulleys of different diametersrotating together on the same axis, a pulley mounted on the car, a cablepassing over the larger of the pair of pulleys, under the pulley on thecar and over the smaller of the pair of pulleys, a tackle of one or moremovable pulleys mounted on shafts and receiving the cable from eachpulley of said pair of pulleys, the ends of the cables being fixed nearthe upper end of the travel of the car, and counter-weights suspended tothe shafts of the movable pulleys of the tackles.

2. In elevator construction, a car, a pair of pulleys of differentdiameters rotating together on a fixed axis above the car, a pulleymounted on the car, a cable passing over the larger of said pair ofpulleys, under the pulley on the car and over the smaller of the pair ofpulleys, block and tackle means telling the cable from each one of thepair of pulleys, and Weights suspended from said last means.

3. In elevator construction, a car, a pair of pulleys of diilerentdiameters rotating together on a fixed axis above the car, a pulleymounted on the car, a cable passing over the larger of the pair ofpulleys, under the pulley on the car and over the smaller of the pair ofpulleys, idlers over which the cable passes from each of said pair ofpulleys, tackles of one or more move. 2 pulleys each receiving the cablefrom the idles, and counter-Weights suspended from said tackles.

4. In elevator construction, a car, a pair of pulleys of differentdiameters rotating together on a fixed axis above the car, a pulasspeeley mounted on the car, a cable passing over the larger of the pair ofpulleys, under the pulley on the car and over the smaller of the pair01" pulleys, idlers over which the cable passes from each of said pairof pulleys, one or more stationary pulleys and a larger number ofmovable pulleys receiving the cables from the larger of the pair ofpulleys, the end of the cable being secured to a fixed point, fixed andmovable pulleys receiving the cable from the smaller of the pair ofpulleys, the end of the cable being secured at a fixed point, ande0unter-weights suspended from each set of said movable pulleys.

Signed at Indianapolis, Indiana, this the 11th day of March, 1922.

, DANIEL V. REEDY.

